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Round|Lab Grown|IGI

1.20ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG754549261

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754549261

Diamond specifications and retailer prices

From £173 GBP
$232 USD
As of October 29, 2026
Save £1,566 GBP (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,739 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754549261 or 754549261. Listed at 21 retailers as of October 29, 2026, with prices from £173 to £1,739, a £1,566 spread on the same certified stone. Brilliant Earth lists it at £1,739. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754549261
Dimensions6.81 × 6.76 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.81 mm6.76 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754549261
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,739 GBP|Low: £166 GBP|High: £1,739 GBP|Avg: £497 GBP|+9.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12£173 GBP
Retailer 5£193 GBP
Retailer 13£215 GBP
Retailer 6£359 GBP
Retailer 3£364 GBP
Retailer 7£369 GBP
Retailer 4£393 GBP
Retailer 2£404 GBP
Retailer 8£524 GBP
Retailer 11£693 GBP
Retailer 9£863 GBP
Retailer 10£907 GBP
Brilliant Earth£1,739 GBP

43 data points across 13 retailers

21 retailers£173 GBP to £1,739 GBP

A
Cheapest Retailer
-
£173 GBP
$232 USD
A
Retailer 2
-
£193 GBP
$259 USD
View
Final sale: no returns
A
Retailer 3
-
£201 GBP
$269 USD
View
A
Retailer 4
-
£215 GBP
$288 USD
View
A
Retailer 5
-
£215 GBP
$288 USD
View
A
Retailer 6
-
£239 GBP
HK$2,500 HKD
View
A
Retailer 7
-
£359 GBP
€458 EUR
View
A
Retailer 8
-
£364 GBP
$488 USD
View
A
Retailer 9
-
£369 GBP
ZAR 7,991 ZAR
View
A
Retailer 10
-
£393 GBP
$527 USD
View
A
Retailer 11
-
£404 GBP
View
B+
Retailer 12
-
£478 GBP
$641 USD
View
B+
Retailer 13
-
£524 GBP
A$1,080 AUD
View
B+
Retailer 14
-
£690 GBP
$925 USD
View
B+
Retailer 15
-
£693 GBP
$929 USD
View
B+
Retailer 16
-
£694 GBP
SGD 1,257 SGD
View
B+
Retailer 17
-
£730 GBP
$978 USD
View
B+
Retailer 18
-
£863 GBP
View
Retailer 19
-
£907 GBP
$1,215 USD
View
Price last confirmed 12 days ago
B
Retailer 20
-
£967 GBP
$1,296 USD
View
Most Expensive
B
Brilliant Earth
19056339A · Oct 29
£1,739 GBP
$2,330 USD
View
20 more retailers have this diamond
Prices start from £173 GBPSave up to £1,566 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.20ct Round
£173 GBP